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发明名称
Device for sharpening gramophone needles
摘要
申请公布号
US1851229(A)
申请公布日期
1932.03.29
申请号
US19300490728
申请日期
1930.10.23
申请人
JAMES WRIGHT ALBERT FREDERICK
发明人
WRIGHT ALBERT FREDERICK JAMES
分类号
B24B19/16
主分类号
B24B19/16
代理机构
代理人
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